To Bathe In, To Be Exposed To
transitive verb, ichidan verb
This word consists of kanji with hiragana attached. Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means bathe so the verb vocab version is to bathe in. This verb is transitive, and the object is whatever you're "bathing in". It could be a bath or a shower, but it could also be the sun. So you can both シャワーを浴びる and 日の光を浴びる. More negatively, this can also mean to be exposed to something, such as criticism or radioactivity.
あびる
You want to know the best way to bathe in something? With a bunch of aardvarks (あ) in the water. They use their sticky little tongues to clean all your cracks and crannies.
ウチの犬はシャワーを浴びるのが好きです。
My dog likes to take showers.
これは朝日を浴びるアサガオの写真です。
This is a picture of a morning glory in the morning sun.
クリスマスは家にこもって日本のアニメを浴びるほど見るつもりです。
For Christmas, I plan to stay home and watch as much Japanese anime as I can.